# UV-IR 복합형 화재감지장치 개발

• 이복영 (한국화재보험협회 부설 방재시험연구원 방재설비부) ;
• 권오승 (한국화재보험협회 부설 방재시험연구원 방재설비부) ;
• 정창기 (한국화재보험협회 부설 방재시험연구원 방재설비부) ;
• 박상태 (한국화재보험협회 부설 방재시험연구원 방재설비부)
• Published : 2001.03.01

#### Abstract

All objects emit thermal radiation and this radiation is the basis of the techniques used to detect flames. The usual phenomena occurring in the initial stage of the fire are generally invisible products of a combustion and visible smoke. Liquid or gaseous materials do not undergo a smoldering stage so that fires develop very rapidly. Also, the heat generated by the initial flames is usually not sufficient to activate a heat detector. In this case the most effective criterion for automatic fire detection is the flame. According to the fire regulation of korea, the compulsory standard provided that a flame detector shall be installed in a place that the attachment height of detector is higher than 20 m, chemical plants, hangar, refinery, etc.. The results of the research and development are discriminated between a flame and other radiant emitters, developed a UV detector tube contains an inert gas which absorbs UV radiation, developed PZT pyroelectric element is based on the use of photovoltanic cell, developed IR band-pass filter that only allow a 4.3 $\mu\textrm{m}$ radiation wavelength to reach the sensors and developed UV-IR combination flame detector combined into a single detection device.